Today our topic of discussion is Types of Chest Drainage.

Types of Chest Drainage

Types of Chest Drainage

The One-Bottle Water-Seal System
The end of the drainage tube from the patient’s chest is covered by a layer of water which permits drainage and
Functionally, drainage depends on gravity, on the mechanics of respiration and, if desired, on suction by the addition of controlled vacuum.
The tube from the patient extends approximately 2.5cm below the level of the water in the container.
There is a vent pe the escape of any air that might be leaking from the lung The water level fluctuates as the patient exhales.
At the end of the drainage tube, bubbling may or may not be visible.
Bubbling can mean either persistent leakage of air from the Jung or other tissues or a leak in the system.

The Two-Bottle Water-seal System

The two bottle system consists of the same water seal chamber plus a fluid-collection bottle. Drainage is similar to that of a single unit, except that when pleural fluid drains. the underwater seal system in not affected by the volume of drainage.

Effective drainage depends on gravity or on the amount of suction added to the system. When vacuum is added to the system from a vacuum source, such as wall suction, the connection is made at the vent stem of the underwater- seal bottle. The amount of suction applied to the system is regulated to the wall gauge.

The Three-Bottle Water-seal System

This system is similar in all respect to the two-bottle system, except for the addition of a third bottle to control the amount of suction applied.
The amount of suction is determined by the depth to which the tip of the venting glass tube is submerged.
In the three-bottles system, drainage depends on gravity or the amount of suction applied.
The amount of suction in the system is controlled by the manometer bottle.
The mechanical suction motor or wall suction creates and maintains a negative pressure throughout the entire closed drainage system.
The manometer bottle regulates the amount of the vacuum in the system.
This bottle contains three tubes: A short tube above the water level comes from the water seal bottle
Another short tube leads to the vacuum or suction motor or wall suction
The third tube is a long tube which extends below the water level in the bottle and which is open to the atmosphere outside the bottle.

This is in the tube that regulates the amount of vacuum in the system.
This is regulated by the depth to which this tube is submerged the usual depth is 20 cm.
When the vacuum in the system becomes greater than the depth to which the tube is submerged, outside air is sucked into the system. This result in constant

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